Sign inBook a free assessment

Country and language

Country and language: Canada

Country and language

4/20 as a decimal and a percentage

4/20

= 0.2 = 20%

4/20 means 4 out of 20 equal parts. As a decimal it is 0.2, and as a percentage 20%.

4/20 on a fraction bar: 4 of 20 parts shaded

Ways to write it

Decimal
0.2
Percentage
20%
Simplest form
1/5
As a division
4 ÷ 20
Equivalent fractions
2/10 = 3/15 = 5/25 = 1/5
Compared with one half
Less than 1/2
Reciprocal
20/4
4/20 of 80
16

How to work it out

  1. Divide the top number by the bottom number: 4 ÷ 20 = 0.2.
  2. To make a percentage, multiply by 100: 0.2 × 100 = 20%.
  3. To simplify, divide the top and bottom by 4, their highest common factor: 4 ÷ 4 = 1 and 20 ÷ 4 = 5, so 4/20 = 1/5.

Quick check

  1. Is 4/20 more or less than 1/2?

    Show the answer

    Less than 1/2

  2. What is 4/20 of 80?

    Show the answer

    16

  3. 4/20 = ?/40

    Show the answer

    8

Practise with a game

Frequently asked questions

What is 4/20 as a decimal?

4/20 as a decimal is 0.2.

What is 4/20 as a percentage?

4/20 as a percentage is 20%.

What is 4/20 in its simplest form?

4/20 in its simplest form is 1/5.